WHvGetVirtualProcessorRegisters

// WinHvPlatform.dll
#include <windows.h>

HRESULT WHvGetVirtualProcessorRegisters(
    WHV_PARTITION_HANDLE Partition,
    DWORD VpIndex,
    const WHV_REGISTER_NAME* RegisterNames,
    DWORD RegisterCount,
    WHV_REGISTER_VALUE* RegisterValues
);

<DllImport("WinHvPlatform.dll", ExactSpelling:=True)>
Public Shared Function WHvGetVirtualProcessorRegisters(
    Partition As IntPtr,   ' WHV_PARTITION_HANDLE
    VpIndex As UInteger,   ' DWORD
    ByRef RegisterNames As Integer,   ' WHV_REGISTER_NAME*
    RegisterCount As UInteger,   ' DWORD
    RegisterValues As IntPtr   ' WHV_REGISTER_VALUE* out
) As Integer
End Function

' Partition : WHV_PARTITION_HANDLE
' VpIndex : DWORD
' RegisterNames : WHV_REGISTER_NAME*
' RegisterCount : DWORD
' RegisterValues : WHV_REGISTER_VALUE* out
Declare PtrSafe Function WHvGetVirtualProcessorRegisters Lib "winhvplatform" ( _
    ByVal Partition As LongPtr, _
    ByVal VpIndex As Long, _
    ByRef RegisterNames As Long, _
    ByVal RegisterCount As Long, _
    ByVal RegisterValues As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WHvGetVirtualProcessorRegisters = ctypes.windll.winhvplatform.WHvGetVirtualProcessorRegisters
WHvGetVirtualProcessorRegisters.restype = ctypes.c_int
WHvGetVirtualProcessorRegisters.argtypes = [
    ctypes.c_ssize_t,  # Partition : WHV_PARTITION_HANDLE
    wintypes.DWORD,  # VpIndex : DWORD
    ctypes.c_void_p,  # RegisterNames : WHV_REGISTER_NAME*
    wintypes.DWORD,  # RegisterCount : DWORD
    ctypes.c_void_p,  # RegisterValues : WHV_REGISTER_VALUE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinHvPlatform.dll')
WHvGetVirtualProcessorRegisters = Fiddle::Function.new(
  lib['WHvGetVirtualProcessorRegisters'],
  [
    Fiddle::TYPE_INTPTR_T,  # Partition : WHV_PARTITION_HANDLE
    -Fiddle::TYPE_INT,  # VpIndex : DWORD
    Fiddle::TYPE_VOIDP,  # RegisterNames : WHV_REGISTER_NAME*
    -Fiddle::TYPE_INT,  # RegisterCount : DWORD
    Fiddle::TYPE_VOIDP,  # RegisterValues : WHV_REGISTER_VALUE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhvplatform")]
extern "system" {
    fn WHvGetVirtualProcessorRegisters(
        Partition: isize,  // WHV_PARTITION_HANDLE
        VpIndex: u32,  // DWORD
        RegisterNames: *const i32,  // WHV_REGISTER_NAME*
        RegisterCount: u32,  // DWORD
        RegisterValues: *mut WHV_REGISTER_VALUE  // WHV_REGISTER_VALUE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinHvPlatform.dll")]
public static extern int WHvGetVirtualProcessorRegisters(IntPtr Partition, uint VpIndex, ref int RegisterNames, uint RegisterCount, IntPtr RegisterValues);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinHvPlatform_WHvGetVirtualProcessorRegisters' -Namespace Win32 -PassThru
# $api::WHvGetVirtualProcessorRegisters(Partition, VpIndex, RegisterNames, RegisterCount, RegisterValues)

#uselib "WinHvPlatform.dll"
#func global WHvGetVirtualProcessorRegisters "WHvGetVirtualProcessorRegisters" sptr, sptr, sptr, sptr, sptr
; WHvGetVirtualProcessorRegisters Partition, VpIndex, RegisterNames, RegisterCount, varptr(RegisterValues)   ; 戻り値は stat
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; VpIndex : DWORD -> "sptr"
; RegisterNames : WHV_REGISTER_NAME* -> "sptr"
; RegisterCount : DWORD -> "sptr"
; RegisterValues : WHV_REGISTER_VALUE* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "WinHvPlatform.dll"
#cfunc global WHvGetVirtualProcessorRegisters "WHvGetVirtualProcessorRegisters" sptr, int, int, int, var
; res = WHvGetVirtualProcessorRegisters(Partition, VpIndex, RegisterNames, RegisterCount, RegisterValues)
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; VpIndex : DWORD -> "int"
; RegisterNames : WHV_REGISTER_NAME* -> "int"
; RegisterCount : DWORD -> "int"
; RegisterValues : WHV_REGISTER_VALUE* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT WHvGetVirtualProcessorRegisters(WHV_PARTITION_HANDLE Partition, DWORD VpIndex, WHV_REGISTER_NAME* RegisterNames, DWORD RegisterCount, WHV_REGISTER_VALUE* RegisterValues)
#uselib "WinHvPlatform.dll"
#cfunc global WHvGetVirtualProcessorRegisters "WHvGetVirtualProcessorRegisters" intptr, int, int, int, var
; res = WHvGetVirtualProcessorRegisters(Partition, VpIndex, RegisterNames, RegisterCount, RegisterValues)
; Partition : WHV_PARTITION_HANDLE -> "intptr"
; VpIndex : DWORD -> "int"
; RegisterNames : WHV_REGISTER_NAME* -> "int"
; RegisterCount : DWORD -> "int"
; RegisterValues : WHV_REGISTER_VALUE* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	winhvplatform = windows.NewLazySystemDLL("WinHvPlatform.dll")
	procWHvGetVirtualProcessorRegisters = winhvplatform.NewProc("WHvGetVirtualProcessorRegisters")
)

// Partition (WHV_PARTITION_HANDLE), VpIndex (DWORD), RegisterNames (WHV_REGISTER_NAME*), RegisterCount (DWORD), RegisterValues (WHV_REGISTER_VALUE* out)
r1, _, err := procWHvGetVirtualProcessorRegisters.Call(
	uintptr(Partition),
	uintptr(VpIndex),
	uintptr(RegisterNames),
	uintptr(RegisterCount),
	uintptr(RegisterValues),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WHvGetVirtualProcessorRegisters(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  VpIndex: DWORD;   // DWORD
  RegisterNames: Pointer;   // WHV_REGISTER_NAME*
  RegisterCount: DWORD;   // DWORD
  RegisterValues: Pointer   // WHV_REGISTER_VALUE* out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvGetVirtualProcessorRegisters';

result := DllCall("WinHvPlatform\WHvGetVirtualProcessorRegisters"
    , "Ptr", Partition   ; WHV_PARTITION_HANDLE
    , "UInt", VpIndex   ; DWORD
    , "Ptr", RegisterNames   ; WHV_REGISTER_NAME*
    , "UInt", RegisterCount   ; DWORD
    , "Ptr", RegisterValues   ; WHV_REGISTER_VALUE* out
    , "Int")   ; return: HRESULT

●WHvGetVirtualProcessorRegisters(Partition, VpIndex, RegisterNames, RegisterCount, RegisterValues) = DLL("WinHvPlatform.dll", "int WHvGetVirtualProcessorRegisters(int, dword, void*, dword, void*)")
# 呼び出し: WHvGetVirtualProcessorRegisters(Partition, VpIndex, RegisterNames, RegisterCount, RegisterValues)
# Partition : WHV_PARTITION_HANDLE -> "int"
# VpIndex : DWORD -> "dword"
# RegisterNames : WHV_REGISTER_NAME* -> "void*"
# RegisterCount : DWORD -> "dword"
# RegisterValues : WHV_REGISTER_VALUE* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。